CN218730714U - Automatic reclosing miniature circuit breaker with metering leakage module - Google Patents

Abstract

The utility model relates to a take automatic reclosing lock miniature circuit breaker of measurement earth leakage module, including the circuit breaker unit, be used for driving the automatic reclosing device that the circuit breaker unit carries out the divide-shut brake action, be provided with measurement earth leakage protection module on one side of circuit breaker unit and automatic reclosing device, measurement earth leakage protection module includes casing, measurement earth leakage protection group is including earth leakage protection circuit board, temperature measurement circuit board, zero sequence transformer, measurement mutual-inductor, the earth leakage protection circuit board on two binding post punishments that correspond the circuit breaker unit do not be provided with two contact pieces, two contact pieces pass the casing and contradict on two binding post, the control scheme board of temperature measurement circuit board and automatic reclosing device between be connected with the contact pin. The utility model has the advantages of simple structure, stable performance, reliability, convenient assembly and low cost.

Description

Automatic reclosing miniature circuit breaker with metering leakage module

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to take automatic reclosing lock miniature circuit breaker of measurement electric leakage module.

Background

At present, small circuit breakers are widely used in low-voltage distribution networks, mainly in various places such as industrial, commercial, high-rise and residential houses, and can perform overcurrent protection and leakage protection on electric devices such as motors, distribution lines and lighting circuits. The traditional small circuit breaker needs manual operation to complete the opening and closing actions. With the development of intelligent power grids in China, on the premise of requiring safe operation of the power grids, the realization of intellectualization of control of electric appliances is more and more urgent. In order to cope with new situation changes, the existing miniature circuit breaker should be provided with an automatic reclosing function. The automatic reclosing device of the miniature circuit breaker is an accessory used for a remote electric opening and closing circuit breaker, is directly matched with a prepayment electric energy meter for use, and can realize reclosing after payment. The existing miniature circuit breaker with the automatic reclosing lock has the defects of unreasonable structural design, incapability of integrating and modularizing the metering leakage assembly, incapability of realizing flexible collocation of the miniature circuit breaker and the metering leakage assembly according to customer demands, more tedious assembly, low production efficiency and higher cost, and further has the defects of complex structure, unreliable performance, inconvenient assembly and high cost.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance are reliable, the assembly is convenient, with low costs take the automatic reclosing lock miniature circuit breaker of measurement electric leakage module.

For realizing the above-mentioned purpose, the utility model discloses a take automatic reclosing lock miniature circuit breaker of measurement earth-leakage module, including circuit breaker unit, be used for driving the automatic reclosing device that circuit breaker unit carried out the divide-shut brake action, one side of circuit breaker unit and automatic reclosing device on be provided with measurement earth-leakage protection module, measurement earth-leakage protection module including setting up casing on one side of the shell of circuit breaker unit, the measurement earth-leakage protection group of setting in the casing, measurement earth-leakage protection group including earth-leakage protection circuit board, the temperature measurement circuit board that is connected with the earth-leakage protection circuit board, the zero sequence transformer who is connected with the earth-leakage protection circuit board electricity, the measurement mutual-inductor who is connected with the earth-leakage protection circuit board electricity, the earth-leakage protection circuit board on two binding post punishments that correspond circuit breaker unit do not be provided with two contact pieces, two contact pieces pass the casing and contradict on two binding post, the control circuit board of temperature measurement circuit board and automatic reclosing lock device between be connected with the contact pin.

The beneficial effect of above-mentioned structure is: this automatic reclosing lock miniature circuit breaker's measurement earth leakage protection module can play earth leakage protection, the effect of measurement function, measurement earth leakage protection module adopts modular structure design, thereby be convenient for measure the assembly of earth leakage protection module and circuit breaker unit, it is more convenient to assemble, thereby can realize the nimble collocation of circuit breaker unit and measurement earth leakage protection module according to customer's demand, production efficiency is higher, the cost is lower, and be connected through the contact pin between the control scheme board of temperature measurement circuit board and automatic reclosing device, thereby be convenient for measure the assembly of earth leakage protection module and automatic reclosing device. Therefore, the metering leakage protection module of the automatic reclosing miniature circuit breaker has the advantages of simple structure, stable and reliable performance, convenience in assembly and low cost.

Particularly, the leakage protection circuit board is provided with a thermistor corresponding to the two contact pieces. The thermistor can monitor the temperature of the contact piece, so that the temperature monitoring function of the automatic reclosing miniature circuit breaker can be realized.

The casing include the bottom plate that sets up on shell one side, set up the shroud on the bottom plate, measurement earth leakage protection group set up on the bottom plate, the shroud on correspond zero sequence transformer, measurement mutual-inductor punishment and do not be provided with two sleeve pipes that can supply the wire to pass, the bottom plate on be provided with two sleeve pipe matched with through-holes, two sleeve pipes pass zero sequence transformer, measurement mutual-inductor in proper order and alternate in two through-holes. Be provided with the sleeve pipe of interlude in zero sequence transformer, measurement mutual-inductor on the shroud to be convenient for measure the assembly of earth leakage protection group and casing, can guarantee to measure the earth leakage protection group and be connected compacter with being connected of casing, and the bottom plate adopts the joint mode with the shroud to be connected, thereby the assembly of bottom plate and shroud of being convenient for, it is more convenient to assemble.

Particularly, the bottom plate on be provided with the pothook, the shell of circuit breaker unit on be provided with pothook matched with draw-in groove, the pothook block in the draw-in groove, and constitute the joint cooperation of shell and bottom plate. The bottom plate is connected with the shell of the circuit breaker unit in a clamping matching mode, so that the bottom plate and the shell of the circuit breaker unit can be assembled conveniently, and the metering leakage protection module and the circuit breaker unit can be assembled in a modular mode.

Drawings

Fig. 1 is a perspective view of an automatic reclosing miniature circuit breaker according to an embodiment of the present invention.

Fig. 2 is the internal structure diagram of the automatic reclosing miniature circuit breaker of the embodiment of the utility model.

Fig. 3 is a perspective view of the embodiment of the present invention.

Fig. 4 is an internal structure diagram of the embodiment of the present invention.

Detailed Description

As shown in fig. 1-4, an embodiment of the present invention is an automatic reclosing miniature circuit breaker with a metering leakage module, including circuit breaker unit 10, automatic reclosing device 11 for driving circuit breaker unit 10 to execute the opening and closing action, one side of circuit breaker unit 10 and automatic reclosing device 11 on be provided with metering leakage protection module 20, metering leakage protection module 20 including set up casing 21 on one side of casing 101 of circuit breaker unit, set up metering leakage protection group 22 in casing 21, metering leakage protection group 22 including leakage protection circuit board 221, temperature measurement circuit board 222 connected with leakage protection circuit board 221, zero sequence transformer 223 electrically connected with leakage protection circuit board 221, metering transformer 224 electrically connected with leakage protection circuit board 221, leakage protection circuit board 221 on correspond two binding post 102 punishment of circuit breaker unit 10 and be provided with two contact pieces 225 respectively, two contact pieces 225 pass casing 21 and contradict on two binding post 102, temperature measurement circuit board 222 and automatic reclosing device 11 between be connected with contact pin 226. The leakage protection circuit board 221 is provided with a thermistor 227 corresponding to the two contact pieces 225. The thermistor can monitor the temperature of the contact piece, so that the temperature monitoring function of the automatic reclosing miniature circuit breaker can be realized. The casing 21 include the bottom plate 211 that sets up on shell 101 one side, set up the shroud 212 on bottom plate 211, measurement earth leakage protection group 22 set up on bottom plate 211, the shroud 212 on correspond zero sequence mutual-inductor 223, measure the mutual-inductor 224 punishment and be provided with two sleeve pipes 2121 that can supply the wire to pass respectively, bottom plate 211 on be provided with two sleeve pipes 2121 matched with through-hole 2111, two sleeve pipes 2121 pass zero sequence mutual-inductor 223, measure mutual-inductor 224 in proper order and alternate in two through-holes 2111. Be provided with the sleeve pipe of interlude in zero sequence transformer, measurement mutual-inductor on the shroud to be convenient for measure the assembly of earth leakage protection group and casing, can guarantee to measure the earth leakage protection group and be connected compacter with the casing, and the bottom plate adopts the joint mode with the shroud to be connected, thereby the assembly of bottom plate and shroud of being convenient for, it is more convenient to assemble. The bottom plate 211 is provided with a hook 2112, the housing 101 of the breaker unit 10 is provided with a slot 103 matched with the hook 2112, the hook 2112 is clamped in the slot 103, and the housing 101 and the bottom plate 211 are clamped and matched. The bottom plate is connected with the shell of the circuit breaker unit in a clamping matching mode, so that the bottom plate and the shell of the circuit breaker unit can be assembled conveniently, and the metering leakage protection module and the circuit breaker unit can be assembled in a modular mode.

This automatic reclosing lock miniature circuit breaker's measurement earth leakage protection module can play earth leakage protection, the effect of measurement function, measurement earth leakage protection module adopts modular structure design, thereby be convenient for measure the assembly of earth leakage protection module and circuit breaker unit, it is more convenient to assemble, thereby can realize the nimble collocation of circuit breaker unit and measurement earth leakage protection module according to customer's demand, production efficiency is higher, the cost is lower, and be connected through the contact pin between the control scheme board of temperature measurement circuit board and automatic reclosing device, thereby be convenient for measure the assembly of earth leakage protection module and automatic reclosing device. Therefore, the metering leakage protection module of the automatic reclosing miniature circuit breaker has the advantages of simple structure, stable and reliable performance, convenience in assembly and low cost.

Claims (4)

1. The utility model provides a take autoreclosing miniature circuit breaker of measurement electric leakage module, includes circuit breaker unit, is used for driving the autoreclosing device that circuit breaker unit carried out the divide-shut brake action, its characterized in that: the circuit breaker unit is characterized in that a metering leakage protection module is arranged on one side of the automatic reclosing device and comprises a shell arranged on one side of the shell of the circuit breaker unit and a metering leakage protection group arranged in the shell, the metering leakage protection group comprises a leakage protection circuit board, a temperature measurement circuit board connected with the leakage protection circuit board, a zero sequence transformer electrically connected with the leakage protection circuit board and a metering transformer electrically connected with the leakage protection circuit board, two contact pieces are respectively arranged at two wiring terminals corresponding to the circuit breaker unit on the leakage protection circuit board, the two contact pieces penetrate through the shell and are abutted to the two wiring terminals, and a contact pin is connected between the temperature measurement circuit board and the control circuit board of the automatic reclosing device.

2. The recloser miniature circuit breaker with metering leakage module according to claim 1, characterized in that: and the parts of the leakage protection circuit board corresponding to the two contact pieces are respectively provided with a thermistor.

3. The recloser miniature circuit breaker with metering leakage module according to claim 1 or 2, characterized in that: the casing including setting up bottom plate, the shroud of setting on the bottom plate on shell one side, measurement earth leakage protection group set up on the bottom plate, the shroud on correspond zero sequence transformer, measurement transformer punishment and do not be provided with two sleeves that can supply the wire to pass, the bottom plate on be provided with two sleeve pipe matched with through-holes, two sleeves pass zero sequence transformer, measurement transformer in proper order and alternate in two through-holes.

4. The recloser miniature circuit breaker with earth leakage metering module of claim 3, characterized in that: the bottom plate on be provided with the pothook, the shell of circuit breaker unit on be provided with pothook matched with draw-in groove, the pothook block in the draw-in groove, and constitute the joint cooperation of shell and bottom plate.

Images